Home / 136,107.84-187,783.86-82,372.44

Finding the Fourth Proportional to 136,107.84, 187,783.86 and 82,372.44

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Solution

The fourth proportional to 136,107.84, 187,783.86 and 82,372.44 is: 113,646.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,107.84 : 187,783.86 = 82,372.44 : x
  2. Step 2: Convert to fraction form
    136,107.84/187,783.86 = 82,372.44/x
  3. Step 3: Cross multiply
    136,107.84x = 187,783.86 × 82,372.44
  4. Step 4: Simplify right side
    136,107.84x = 15,468,214,740.82
  5. Step 5: Solve for x
    x = 15,468,214,740.82/136,107.84
  6. Step 6: Final answer
    x = 113,646.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.